and Katara's powerup is essentially getting to rape people.

Urgh. I'd forgotten about that, why did you have to remind me? Yeah, it's skeevy that when Aang and Zuko power up, it puts them more in touch with nature and their roots and such, and it's a purely good thing; but when Katara powers up, it's a bad thing that tempts her to abuse it.

...okay, I'm adding this to the post, actually. YOU MADE ME DO IT.